Adjustable journal box mounting



July 29, 1941. o. v. BORUP ADJUSTABLE JOURNAL BOX MOUNTING,

Filed NOV. 14, 1939 Oscar INVENTOR MBorzz v BY 2 I ATTORNEY PatentedJuly 29, 1 941 UNITED STATES PATENT OFFICE;

' Oscar V. Borup, Berwick, Pa., assignor to American Car and FoundryCompany, New York, N. Y., a corporation of New Jersey ApplicationNovember 14 1939, Serial No. 304,312 9 Claims. (c1. 1o5-224) Thisinvention relates to journal box mountings in general and in particularto such mountings for railway car use wherein an adjustment is providedbetween the truck and journal box.

In the past journal boxes have been mounted in the pedestal jaws withoutany means being provided to control the relative movements between thetruck and journal box. As a result the side thrusts were transmitteddirectlyto the side frame producing'excessive noise and transmittingshock to the car body. Further, in these old constructions there was nopositive means for returningthe journal box to its proper position afterit had received a side or lateral thrust from the wheel and axleassembly. It is an object, therefore, of the present invention toprovide an improved journal box mounting with the parts so arranged asto constrain the journal box in its true position.

A further object of the invention is the provision of resilient unitsbetween the journal box and pedestal jaws, which units may beprecompressed yet readily assembled in position without the necessity ofspecial tools.

A still further object of the invention is the provision of resilientmeans positioned between the journal box and pedestal legs and which maybe placed under varying degrees of precompression by an adjustable wedgemember.

A yet further object of the invention is the provision of a resilientconnection between the journal box and adjacentpedestal leg, which andouter housings l0 and I2 respectively which prevent entrance of anyforeign matter into the preassembled and adjusted bearings. The sideportions of the journal box are provided with a central recessed portionI4 for a purpose later to be referred to, while the edges of the sideportions are extended to provide ears or lugs I6 which will limit thepermissible sidemotion of the journal box. These ears or lugs and partsof the sideportions of the journal box arepreferably protected from wearby means of hardened wear plates l8,'all of which is more or lessconventional construction.

The truck frame 20, a portion only of which is shown, is formed withpedestal legs 22 providing the pedestal jaw for reception of the journalbox and these pedestal legs are tapered slightly from the vertical byhaving the inner faces 24 thereof converging inwardly and upwardly. The

lower ends of the pedestal legs are connected together by any suitableform of pedestal tie bar 26, while the truck frame is provided above theaxle position with a spring seat28 in which the 7 upper end of a coilspring 30 may be received. The lower end of the coil spring is adaptedto rest in a spring cup 32 formed on the upper surface of the journalbox.

In order to control the lateral movements of the journal box as well asits vertical and horiconnection may move when heavily stressed toprevent an over stressing of the resilient unit.

These and other objects of the invention will be apparent to personsskilled in the art from a study of the following description andaccompanying drawing, in which:

' Figure l is an elevational view of the improved journal box mountingwith portions being broken away in order to more clearly disclose theconstruction and arrangement of parts;

Fig. 2 is a sectional view taken substantially on line 22 of Figure 1,and

Fig. 3 is a sectional view taken substantially on line 33 of Figure 1.

Referring now to the drawing in detail, it will be seen that the axle 2is supported by a wheel, the hub of which is shown at 4, and carries atits end a journal box B. This journal box may The entire bearingassembly is protected by inner zontal fore and aft movements a resilientunit is provided, which unit consists of an inner plate 36 vulcanizedto. one surface of a resilient block 38,

the other surface of which is vulcanized to an outerplate 40. The innerplate rests in the recess M of the journal box and is securely fas tenedto the journal box in any suitable manner, such as by tap bolts 42,while the outer plate has secured thereto a bronze or other suitablebearing member 44. This bronze or other type of bearing member may beheld in position upon the outer plate of the resilient unit bycountersunk screws or by upper and lower flanges 45 as shown byFigure 1. The bronze or other bearing member 44 is preferably of channelshape in cross section as clearly shown in Fig. 2 and engages a hardenedsteel wear member 46 also a channel form secured to a wedge member 48and connected by any suitable means,.such as upper and lower flanges 49.The wedge member is projections 52 and these teeth are adapted to matewith corresponding teeth or projections 54 formed on the innersurface ofcombined wedge retainers and pedestal leg side members 56 which areadapted to engage at their inner'edges with the hardened wear members l8of the journal box. The combined wedge retainers and pedestal leg sidepieces are firmly held in position on the pedestal legs by means ofthrough bolts 58 which extend through the side pieces and through thepedestal leg. It will be apparent that by loosening the bolts 58 thepedestal leg side pieces 56 may be moved outwardly, thus releasing theteeth or projections of the wedge member, after which this wedge membermaybe driven either upwardly or downwardly, thereby placing a greater orlesser amount of compression on the resiilent unit. In this way theprecompression on the resilient unit may be adjusted at any time withoutnecessitating any changes in the construction of the parts.

In assembling the journal box mounting it is only necessary to lower theside frames onto the preassembled wheel axle and journal box assemblies,after which the wedges may be driven upwardly into their proper ordesired position and the pedestal .leg side pieces clamped on to thebers I8 and the removable pedestal leg side pieces.

Vertical movements of the journal box are restrained by the coil springand the resilient unit acting in shear and in parallel with the coilspring. Any excessive strain cannot be imparted to the rubber unit dueto the fact that the bronze or other bearing member may shift along thesurface of the appended wear member carried'by the Wedge whenever thestress exceeds the vertical engagementbetween the bearing and thehardened wear member. It should be noted with the use of the wedges thejournal box may be placed in its desired neutral position, that is, withthe car body or some small predetermined load in place, after which thewedges will be driven into position and the desired amount of precompression placed on the resilient units and without imparting .any verticalstress to the unit; such result being obtained by use of a smallrestraining block (not shown) inserted between the truck frame and theupper edge of plate 40 and used v only during assembly.

It will be Obvious that various modifications and rearrangements ofparts may be made other than those shown and described but all suchmodifications and rearrangements of parts are contemplated which willfall within the scope of said wedge member in position against verticaland lateral movement.

2. In combination with a journal box, a frame formed with spacedpedestal legs receiving said journal box therebetween and in spacedrelation thereto,' resilient units secured to the side portions of saidjournal box and occupying at least a portion of the space between thejournal box and adjacent-pedestal leg, wedge members inter--posed'between the pedestal legs and the adjacent resilient unit, saidwedge members being vertically shiftable to a predetermined position tothereby horizontally compress said resilient units a predeterminedamount, and pedestal side members carried by said pedestal leg andretaining said wedge members in said predetermined position against bothvertical and lateral movement.

3. In combination with a journal box, a frame formed with spacedpedestal legs receiving said journal box therebetween and inspacedrelation thereto, resilient units secured to the side portions ofsaid journal box and occupying at least a portion of the space betweenthe journal box and adjacent pedestal leg, wedge members interposedbetween the pedestal legs and the adjacent resilient unit, said wedgemembers being vertically shiitable to a predetermined position tothereby compress said resilient units a predeter mined amount, andpedestal side members secured to said pedestal legs and overlapping saidwedges, said side members and wedges having portions thereof serratedwhereby said wedge members may be retained in any predeterminedposition.

4. In combination with a journal box, a frame formed with spacedpedestal legs receiving said journal box therebetween and in spacedrelation thereto, resilient units interposed in the spaces between thejournal box and the pedestal legs to resiliently control vertical andhorizontal movements of the journal box, wedge members acting upon saidunits to compress the same in the plane'of the frame, and pedestal sidemembers secured to said pedestal legs and retaining said wedge membersin position against both vertical and lateral movement.

5. In combination with a journal box, a frame formed with spacedpedestal legs receiving said journal box therebetween and in spacedrelation thereto, resilient units interposed in thespaces between thejournal box and the pedestal legs to resiliently control vertical andhorizontal movements of the journal box, wedge members acting uponsaidunits to compress the same in the plane of the frame, and pedestalside members secured to said. pedestal legs and retaining said wedgemembers in position against both vertical and lateral movement, saidpedestal 'side members overlapping said units and limiting thehorizontal movements of said journal box.

6. In combination with a journal box, a frame receiving the same betweenspaced pedestal legs formed on the frame, resilient units interposedbetween the journal box and the pedestal legs, and wedge members actingupon said units to compress the same in the plane of the frame, saidresilient units acting in shear to control the vermember having asubstantially plane pedestal leg securing portion and a serrated wedgesecuring portion adjacent thereto and a journal box engaging surfacelocated outwardly beyond the ser- 5 rated wedge securing portion.

OSCAR V. BORUP.

